Abb Thermal Magnetic Switch 25-32A 50kA MS116-32

The manual thermal magnetic motor switch is also known as a motor protection switch. It is used to turn motors on and off and to protect them from short circuits, overloads, and phase failures without the need for a fuse.

The nominal current of the motor is adjustable on the device with a selector.

• Rated operational voltage: Main circuit 690 V AC
• Rated operational current: 32 A
• Rated short-circuit instantaneous current setting: 480 A
• Adjustment range: 25... 32 A
• Rated operational power AC-3 (P e ): (400 V) Three-phase 15kW
• Rated impulse withstand voltage (U imp): Main circuit 6 kV
• Rated insulation voltage (U i): 690 V
• Number of Poles: 3
• Electrical endurance: 50000 cycles
• Mechanical endurance: 100000 cycles
• Rated short-circuit breaking capacity (I cs): (230 V AC) 10 kA, (400 V AC) 10 kA, (440 V AC) 3 kA, (500 V AC) 3 kA, (690 V AC) 2 kA
• Rated ultimate short-circuit breaking capacity (I cu): (230 V AC) 16 kA, (400 V AC) 16 kA, (440 V AC) 15 kA, (500 V AC) 10 kA, (690 V AC) 3 kA